Create signal_betwn_threads.py

Author: arifulhaqueuc

scripts/signal_betwn_threads.py

@@ -0,0 +1,41 @@
+import logging
+import threading
+import time
+
+logging.basicConfig(level=logging.DEBUG,
+                    format='(%(threadName)-10s) %(message)s',
+                    )
+                    
+def wait_for_event(e):
+    """Wait for the event to be set before doing anything"""
+    logging.debug('wait_for_event starting')
+    event_is_set = e.wait()
+    logging.debug('event set: %s', event_is_set)
+
+def wait_for_event_timeout(e, t):
+    """Wait t seconds and then timeout"""
+    while not e.isSet():
+        logging.debug('wait_for_event_timeout starting')
+        event_is_set = e.wait(t)
+        logging.debug('event set: %s', event_is_set)
+        if event_is_set:
+            logging.debug('processing event')
+        else:
+            logging.debug('doing other work')
+
+
+e = threading.Event()
+t1 = threading.Thread(name='block', 
+                      target=wait_for_event,
+                      args=(e,))
+t1.start()
+
+t2 = threading.Thread(name='non-block', 
+                      target=wait_for_event_timeout, 
+                      args=(e, 2))
+t2.start()
+
+logging.debug('Waiting before calling Event.set()')
+time.sleep(3)
+e.set()
+logging.debug('Event is set')